/* style/news.css */
/* 页面完整样式代码 - 注意：所有选择器必须使用BEM命名规则（双下划线__连接） */

:root {
  --primary-color: #017439;
  --secondary-color: #FFFFFF;
  --text-dark: #333333;
  --text-light: #ffffff;
  --button-register-bg: #C30808;
  --button-login-bg: #C30808;
  --button-text-yellow: #FFFF00;
  --border-color: #e0e0e0;
}

.page-news {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark); /* Default text color for light background */
  background-color: var(--secondary-color);
}

.page-news__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Hero Section */
.page-news__hero-section {
  position: relative;
  width: 100%;
  padding: 80px 0;
  padding-top: var(--header-offset, 120px);
  text-align: center;
  background-color: var(--primary-color);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px; /* Ensure hero section has a minimum height */
}

.page-news__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--text-light);
  line-height: 1.2;
}

.page-news__hero-description {
  font-size: 1.3em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-light);
}

.page-news__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.page-news__btn-register,
.page-news__btn-login,
.page-news__btn-primary,
.page-news__read-more-btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
  box-sizing: border-box;
}

.page-news__btn-register {
  background-color: var(--button-register-bg);
  color: var(--button-text-yellow);
  border: 2px solid var(--button-register-bg);
}

.page-news__btn-register:hover {
  background-color: darken(var(--button-register-bg), 10%);
  border-color: darken(var(--button-register-bg), 10%);
}

.page-news__btn-login {
  background-color: var(--button-login-bg);
  color: var(--button-text-yellow);
  border: 2px solid var(--button-login-bg);
}

.page-news__btn-login:hover {
  background-color: darken(var(--button-login-bg), 10%);
  border-color: darken(var(--button-login-bg), 10%);
}

.page-news__btn-primary {
  background-color: var(--primary-color);
  color: var(--text-light);
  border: 2px solid var(--primary-color);
}

.page-news__btn-primary:hover {
  background-color: darken(var(--primary-color), 10%);
  border-color: darken(var(--primary-color), 10%);
}

.page-news__read-more-btn {
  background-color: var(--primary-color);
  color: var(--text-light);
  border: 1px solid var(--primary-color);
  padding: 10px 20px;
  font-size: 0.9em;
}

.page-news__read-more-btn:hover {
  background-color: darken(var(--primary-color), 10%);
  border-color: darken(var(--primary-color), 10%);
}

/* Sections General */
.page-news__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 20px;
}

.page-news__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-news__light-bg {
  background-color: var(--secondary-color);
  color: var(--text-dark);
  padding: 60px 0;
}

.page-news__dark-bg {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 60px 0;
}

.page-news__dark-bg .page-news__section-title,
.page-news__dark-bg .page-news__section-description,
.page-news__dark-bg .page-news__article-title a,
.page-news__dark-bg .page-news__update-title a,
.page-news__dark-bg .page-news__faq-question span {
  color: var(--text-light);
}

/* Articles Grid */
.page-news__articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-news__article-card {
  background-color: var(--secondary-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  color: var(--text-dark);
}

.page-news__dark-bg .page-news__article-card {
  background-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-news__article-card:hover {
  transform: translateY(-5px);
}

.page-news__article-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-news__article-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-news__article-title {
  font-size: 1.5em;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-news__article-title a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-news__article-title a:hover {
  color: darken(var(--primary-color), 10%);
}

.page-news__dark-bg .page-news__article-title a {
  color: var(--text-light);
}

.page-news__dark-bg .page-news__article-title a:hover {
  color: var(--text-light);
  opacity: 0.8;
}

.page-news__article-meta {
  font-size: 0.85em;
  color: #666;
  margin-bottom: 15px;
}

.page-news__dark-bg .page-news__article-meta {
  color: rgba(255, 255, 255, 0.7);
}

.page-news__article-excerpt {
  font-size: 1em;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Platform Updates */
.page-news__updates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-news__update-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  color: var(--text-light);
}

.page-news__update-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-news__update-title {
  font-size: 1.3em;
  margin-bottom: 10px;
}

.page-news__update-title a {
  color: var(--text-light);
  text-decoration: none;
}

.page-news__update-title a:hover {
  opacity: 0.8;
}

.page-news__update-text {
  font-size: 0.95em;
}

/* Video Section */
.page-news__video-section {
  padding: 60px 0;
  text-align: center;
  background-color: var(--secondary-color);
  color: var(--text-dark);
}

.page-news__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto 30px auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.page-news__main-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.page-news__video-cta {
  margin-top: 30px;
}

/* FAQ Section */
.page-news__faq-section {
  padding: 60px 0;
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-news__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.page-news__faq-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-news__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease;
}

.page-news__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

.page-news__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-news__faq-item.active .page-news__faq-toggle {
  transform: rotate(45deg);
}

.page-news__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 25px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 0.95em;
}

.page-news__faq-item.active .page-news__faq-answer {
  max-height: 1000px !important; /* Sufficiently large to show content */
  padding: 15px 25px;
}

.page-news__faq-answer p {
  margin: 0;
  color: var(--text-light);
}

/* Bottom CTA */
.page-news__cta-bottom {
  padding: 80px 0;
  text-align: center;
}

/* General Image Styles (Responsive) */
.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* General Video Styles (Responsive) */
.page-news video,
.page-news__video {
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
}

.page-news__video-section,
.page-news__video-container,
.page-news__video-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Media Queries for Mobile */
@media (max-width: 768px) {
  .page-news {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-news__hero-section {
    padding: 60px 20px;
    padding-top: var(--header-offset, 120px) !important;
    min-height: 300px;
  }

  .page-news__hero-title {
    font-size: 2.2em;
  }

  .page-news__hero-description {
    font-size: 1em;
  }

  .page-news__section-title {
    font-size: 1.8em;
  }

  .page-news__section-description {
    font-size: 0.95em;
  }

  .page-news__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-news__btn-register,
  .page-news__btn-login,
  .page-news__btn-primary,
  .page-news__read-more-btn {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  .page-news__article-card {
    margin-bottom: 20px;
  }

  .page-news__article-image {
    height: 200px;
  }

  .page-news__article-title {
    font-size: 1.3em;
  }

  .page-news__update-image {
    height: 180px;
  }

  .page-news__update-title {
    font-size: 1.2em;
  }

  .page-news__video-wrapper {
    padding-bottom: 75%; /* Adjust for common mobile aspect ratio if needed, or keep 16:9 */
    max-width: 100% !important;
    width: 100% !important;
  }

  .page-news img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-news video,
  .page-news__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-news__video-section,
  .page-news__video-container,
  .page-news__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-news__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-news__faq-answer {
    padding: 0 20px;
  }

  .page-news__faq-item.active .page-news__faq-answer {
    padding: 10px 20px;
  }

  .page-news__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Content area images, ensure they don't cause overflow */
  .page-news__articles-grid img,
  .page-news__updates-grid img {
    min-width: 200px; /* Ensure minimum size */
    min-height: 200px; /* Ensure minimum size */
  }

  /* Ensure general content sections adapt */
  .page-news__light-bg,
  .page-news__dark-bg {
    padding: 40px 0;
  }

  .page-news__article-card,
  .page-news__update-item {
    box-sizing: border-box !important;
    max-width: 100% !important;
    width: 100% !important;
  }
}